/* Portfolio — light-first, responsive, accessible. No framework. */
:root{
  --font-display:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-body:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --accent:#84a282;
  --accent-2:#b8cfb3;
  --accent-deep:#4e664c;
  --accent-soft:color-mix(in srgb,#b8cfb3 48%,#fefaf3);
  --sun:#84a282;

  --ink:#1e231d;
  --ink-2:#5d6659;
  --ink-3:#666e61;
  --bg:#fefaf3;
  --bg-alt:color-mix(in srgb,#b8cfb3 22%,#fefaf3);
  --bg-hero:#fefaf3;
  --card:#fefaf3;
  --line:#e3e0d4;
  --line-strong:#b8cfb3;

  --radius:0px;
  --radius-sm:0px;
  --max:1140px;
  --max-narrow:840px;
  --shadow:none;
  --shadow-lg:none;
  --header-h:66px;
}
[data-theme="dark"]{
  --accent:#84a282;
  --accent-2:#b8cfb3;
  --accent-deep:#c7dcc3;
  --accent-soft:color-mix(in srgb,#b8cfb3 18%,#181a16);
  --sun:#b8cfb3;
  --ink:#fefaf3;
  --ink-2:#c8c7b9;
  --ink-3:#9b9b8c;
  --bg:#181a16;
  --bg-alt:color-mix(in srgb,#b8cfb3 7%,#181a16);
  --bg-hero:#181a16;
  --card:#181a16;
  --line:#33382f;
  --line-strong:#52604c;
  --shadow:none;
  --shadow-lg:none;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 20px);-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-body);font-size:16px;line-height:1.72;
  overflow-x:clip;
  transition:background .3s ease,color .3s ease;
}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.08;letter-spacing:-.03em;margin:.35em 0;text-wrap:balance;font-weight:700}
h1{font-size:clamp(2.5rem,6vw,5.4rem);letter-spacing:-.055em;line-height:.98}
h2{font-size:clamp(2rem,4vw,3.5rem);letter-spacing:-.045em;margin-bottom:.2em}
h3{font-size:1.05rem;letter-spacing:-.015em}
h4{font-size:.95rem}
p{margin:.6em 0;overflow-wrap:break-word}
a{color:var(--ink);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--accent-deep)}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--accent-2);color:var(--ink)}
.container{max-width:var(--max);margin:0 auto;padding-left:calc(clamp(16px,4vw,32px) + env(safe-area-inset-left,0px));padding-right:calc(clamp(16px,4vw,32px) + env(safe-area-inset-right,0px))}
.container.narrow{max-width:var(--max-narrow)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--bg);padding:12px 18px;z-index:200;border-radius:0;font-weight:600}
.skip-link:focus{left:0}
.scroll-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:120}
.scroll-progress span{display:block;height:100%;width:0;background:var(--accent);box-shadow:none}

/* Header */
.site-header{position:sticky;top:0;z-index:100;display:flex;align-items:center;background:var(--bg);border-bottom:1px solid var(--line)}
.nav{width:100%;max-width:var(--max);margin:0 auto;padding:10px calc(clamp(16px,4vw,32px) + env(safe-area-inset-right,0px)) 10px calc(clamp(16px,4vw,32px) + env(safe-area-inset-left,0px));display:flex;align-items:center;gap:12px;min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--font-body);font-weight:600;min-height:44px}
.brand-mark{width:34px;height:34px;flex:none;display:inline-flex;align-items:center;justify-content:center;border-radius:2px;background:var(--accent);color:#172017;font-size:.78rem;font-weight:700;letter-spacing:.04em;box-shadow:none}
.brand-mark.sm{width:28px;height:28px;font-size:.66rem;border-radius:2px}
.brand-text{font-size:.9rem;white-space:nowrap;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0 0 0 auto;padding:0}
.nav-links a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--ink-2);font-size:.78rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;padding:8px 10px;border-radius:0;white-space:nowrap;transition:color .18s,text-decoration-color .18s}
.nav-links a:hover{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:6px;text-decoration-color:var(--accent)}
.nav-links a.active{color:var(--ink);font-weight:600;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:6px;text-decoration-color:var(--ink)}
[data-theme="dark"] .nav-links a.active{color:var(--ink)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;min-width:44px;min-height:44px;background:transparent;border:1px solid var(--line-strong);border-radius:2px;cursor:pointer;padding:10px}
.nav-toggle span{display:block;width:20px;height:1px;background:var(--ink);margin:5px auto;border-radius:0;transition:transform .25s,opacity .25s}
.theme-toggle{flex:none;min-width:44px;min-height:44px;border:1px solid var(--line-strong);background:transparent;color:var(--ink);border-radius:2px;cursor:pointer;font-size:1rem;line-height:1;transition:border-color .18s,color .18s}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent-deep);background:var(--accent-soft)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:600;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;padding:13px 22px;min-height:46px;border-radius:2px;border:1px solid transparent;transition:background .18s,color .18s,border-color .18s}
.btn:active{transform:none}
.btn-primary{background:var(--accent);color:#172017 !important;box-shadow:none}
.btn-primary:hover{background:var(--ink);color:var(--bg) !important}
[data-theme="dark"] .btn-primary{background:var(--accent);color:#172017 !important}
[data-theme="dark"] .btn-primary:hover{background:var(--ink);color:var(--bg) !important}
.btn-outline{border-color:var(--line-strong);color:var(--ink) !important;background:transparent}
.btn-outline:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-deep) !important}
.btn-small{padding:8px 14px;min-height:38px;font-size:.7rem;border-radius:2px}
.btn-lg{padding:14px 24px;font-size:.8rem}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 10px}

/* Hero */
.hero{position:relative;padding:clamp(72px,10vw,128px) 0 0;background:var(--bg)}
.hero-grid{display:block;padding-bottom:clamp(56px,8vw,96px)}
.hero-copy{min-width:0;max-width:900px}
.availability{display:inline-flex;align-items:center;gap:10px;background:none;border:0;border-bottom:1px solid var(--accent-2);border-radius:0;padding:0 0 8px;font-family:var(--font-mono);font-size:.7rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);box-shadow:none}
.pulse{width:6px;height:6px;border-radius:0;background:var(--accent);box-shadow:none;animation:none}
.eyebrow{color:var(--ink-3);font-family:var(--font-mono);font-weight:500;letter-spacing:.14em;text-transform:uppercase;font-size:.7rem;margin:28px 0 12px}
.hero h1{margin:0 0 22px;font-size:clamp(2.5rem,6vw,5.4rem);line-height:.98;letter-spacing:-.055em;font-weight:700;max-width:1000px}
.hero h1 .grad{background:none;-webkit-background-clip:initial;background-clip:initial;color:var(--ink)}
.hero-pills{list-style:none;display:flex;gap:8px;justify-content:flex-start;flex-wrap:wrap;padding:0;margin:0 0 28px}
.hero-pills li{background:var(--accent-soft);border:1px solid var(--accent-2);padding:5px 10px;border-radius:2px;font-size:.74rem;font-weight:500;color:var(--ink-2);letter-spacing:.02em}
.lede{max-width:720px;margin:0 0 32px;color:var(--ink-2);font-size:clamp(1rem,1.2vw + .85rem,1.1rem);line-height:1.75}
.social-row{list-style:none;display:flex;gap:22px;justify-content:flex-start;flex-wrap:wrap;padding:0;margin:28px 0 0}
.social-row a{display:inline-flex;align-items:center;gap:7px;min-height:40px;text-decoration:none;color:var(--ink-2);font-size:.8rem;font-weight:500;background:none;border:0;padding:0;border-radius:0;transition:color .18s}
.social-row a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.social-row svg{width:15px;height:15px;color:var(--accent-deep)}

.hero-index{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:0 56px;margin-top:clamp(44px,6vw,72px);padding-top:28px;border-top:1px solid var(--accent-2);align-items:start}
.hero-index-head{grid-column:1;grid-row:1;display:flex;flex-direction:column;gap:6px}
.hero-card-name{font-family:var(--font-body);font-weight:600;font-size:.92rem;letter-spacing:0;margin:0}
.hero-card-role{font-family:var(--font-mono);font-size:.68rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-deep);margin:0}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:0;padding:0;grid-column:2;grid-row:1}
.stat{background:none;border:0;border-left:1px solid var(--accent-2);border-radius:0;padding:0 0 0 20px;text-align:left;box-shadow:none}
.stat:first-child{border-left:0;padding-left:0}
.stat dd{margin:0;font-family:var(--font-body);font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:600;color:var(--accent-deep);line-height:1}
.stat dt{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);font-weight:500;margin-top:8px}
.hero-focus{grid-column:1 / -1;list-style:none;margin:36px 0 0;padding:24px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;border-top:1px solid var(--line)}
.hero-focus li{display:flex;align-items:flex-start;gap:10px;padding:0;border:0}
.focus-icon{flex:none;width:auto;height:auto;display:inline-flex;align-items:center;justify-content:center;background:none;color:var(--accent-deep);font-size:.85rem;line-height:1.5}
.hero-focus strong{display:block;font-family:var(--font-body);font-size:.84rem;font-weight:600;line-height:1.4}
.hero-focus div span{display:block;font-size:.77rem;color:var(--ink-3);margin-top:2px}
.hero-card-note{grid-column:1 / -1;justify-self:start;width:100%;max-width:720px;margin:0;padding:16px 18px;border-top:0;border-left:2px solid var(--accent);border-radius:0;background:var(--accent-soft);font-family:var(--font-mono);font-size:.7rem;line-height:1.6;letter-spacing:.02em;color:var(--ink-2)}

.ticker{position:relative;margin-top:0;overflow:hidden;border-top:1px solid var(--accent-2);border-bottom:1px solid var(--accent-2);background:var(--accent-soft);-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ticker-track{display:flex;gap:0;width:max-content;animation:tick 30s linear infinite}
.ticker ul{display:flex;gap:28px;list-style:none;margin:0;padding:12px 14px}
.ticker li{font-family:var(--font-mono);font-size:.7rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap}
.ticker li::before{content:"· ";color:var(--accent);font-size:.9rem}
@keyframes tick{to{transform:translateX(-50%)}}

/* Sections */
.section{position:relative;padding:clamp(64px,10vw,128px) 0}
.section-alt{background:var(--bg-alt)}
.section-contact{background:var(--bg-alt)}
.sec-head{max-width:820px;margin-bottom:clamp(32px,5vw,56px)}
.section-index{display:inline-flex;align-items:center;gap:10px;color:var(--accent-deep);font-family:var(--font-mono);font-weight:500;letter-spacing:.14em;font-size:.7rem;text-transform:uppercase;margin:0}
.section-index::after{content:"";width:44px;height:1px;background:var(--accent-2)}
.sec-bar{display:block;width:36px;height:1px;border-radius:0;background:var(--accent);margin:14px 0 16px}
.sec-bar.center{margin-left:auto;margin-right:auto}
.section-sub{color:var(--ink-2);margin-top:0;max-width:640px}
.contact-inner{text-align:center}
.contact-inner .section-sub{margin-left:auto;margin-right:auto}
.contact-inner .section-index{justify-content:center}
.grid-2{display:grid;grid-template-columns:1.14fr .86fr;gap:20px;align-items:start}
.stack-col{display:grid;gap:20px}
.card{background:transparent;border:1px solid var(--line);border-radius:0;padding:clamp(20px,3vw,28px);box-shadow:none;transition:border-color .2s}
.card:hover{transform:none;box-shadow:none;border-color:var(--line-strong)}
.icon-dot{color:var(--accent-deep);margin-right:6px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.stack{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:.6em 0 0}
.chips li{background:transparent;border:1px solid var(--line-strong);padding:4px 10px;border-radius:2px;font-size:.76rem;font-weight:500;line-height:1.5;color:var(--ink-2)}
.role-chips{margin-top:14px}
.role-chips li{background:var(--accent-soft);border-color:var(--accent-2);color:var(--ink-2)}
.badge{display:inline-block;background:var(--accent-soft);color:var(--accent-deep);font-weight:500;font-size:.7rem;letter-spacing:.04em;padding:4px 8px;border:1px solid var(--accent-2);border-radius:2px}
[data-theme="dark"] .badge{color:var(--accent-deep)}
.muted{color:var(--ink-2)}
.t-date{color:var(--ink-3);font-family:var(--font-mono);font-weight:500;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;margin:0 0 6px}
[data-theme="dark"] .t-date{color:var(--ink-3)}
.inline-stats{list-style:none;display:flex;gap:0;padding:0;flex-wrap:wrap;margin:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.inline-stats li{background:none;border:0;border-radius:0;padding:12px 20px 12px 0;font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2)}
.inline-stats li+li{padding-left:20px;border-left:1px solid var(--line)}
.inline-stats strong{color:var(--ink);font-weight:600}
.timeline{list-style:none;padding:0;margin:.4em 0 0}
.timeline li{border-left:1px solid var(--line-strong);padding:0 0 22px 20px;position:relative}
.timeline li:last-child{padding-bottom:2px}
.timeline li::before{content:"";position:absolute;left:-3px;top:6px;width:5px;height:5px;border-radius:0;background:var(--accent);border:0;box-shadow:none}
.languages-title{margin-top:1.5rem}

/* About */
.about-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);border-top:1px solid var(--accent-2)}
.about-primary{padding:clamp(28px,4vw,44px) clamp(28px,4vw,48px) clamp(28px,4vw,44px) 0;border-right:1px solid var(--line)}
.about-side{padding:clamp(28px,4vw,44px) 0 clamp(28px,4vw,44px) clamp(28px,4vw,48px)}
.about-block{padding:0 0 clamp(28px,3vw,36px);border-bottom:1px solid var(--line);margin-bottom:clamp(28px,3vw,36px)}
.about-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.about-primary h3,.about-block h3{font-family:var(--font-mono);font-size:.7rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 18px}
.about-primary>p,.about-block>p{color:var(--ink-2)}
.about-primary .btn{margin-top:8px}
.about-primary .icon-dot,.about-block .icon-dot{color:var(--accent);margin-right:6px}
.languages-title{font-family:var(--font-mono);font-size:.7rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep)}

/* Skills */
.s-green{--sk:#2e9e5b}
.s-violet{--sk:#7c5cbf}
.s-amber{--sk:#e0a12b}
.s-blue{--sk:#3d8fd8}
.s-teal{--sk:#239c8e}
.s-slate{--sk:#6d8291}
.skill{border-top:1px solid var(--accent-2);background:transparent}
.skill-top{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.skill-icon{flex:none;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem;background:var(--accent-soft);border:1px solid var(--accent-2);border-radius:2px;filter:grayscale(1)}
.skill h3{font-size:1rem;margin:0}
.skill .chips li{background:transparent;border-color:var(--line-strong)}

/* Publications */
.pub{display:grid;grid-template-columns:80px 1fr;gap:20px;align-items:start}
.pub-side{display:flex;align-items:flex-start;justify-content:center;padding-top:4px}
.pub-num{font-family:var(--font-display);font-weight:700;font-size:2.1rem;color:transparent;-webkit-text-stroke:1.5px var(--accent);opacity:.9}
.pub h3{font-size:1.12rem;margin-top:.35em}
.pub .muted{font-size:.92rem}

/* Projects */
.project{display:flex;flex-direction:column;cursor:pointer;position:relative}
.project:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.proj-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.proj-num{font-family:var(--font-display);font-weight:700;color:var(--line-strong);font-size:1.4rem;line-height:1}
.project h3{font-size:1.14rem;margin:.55em 0 .35em}
.project ul{padding-left:20px;margin:.3em 0 0;color:var(--ink-2);font-size:.92rem}
.project li{margin:.35em 0}
.proj-open{background:none;border:0;padding:14px 0 0;margin-top:auto;color:var(--ink);font:inherit;font-weight:600;font-size:.82rem;cursor:pointer;min-height:44px;text-align:left}
[data-theme="dark"] .proj-open{color:var(--ink)}
.proj-open:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}

/* Project modal */
.modal-backdrop{position:fixed;inset:0;z-index:150;background:rgba(17,17,17,.62);display:flex;align-items:center;justify-content:center;padding:20px}
.modal-backdrop[hidden]{display:none}
.modal{position:relative;background:var(--bg);color:var(--ink);border:1px solid var(--line-strong);border-radius:2px;max-width:620px;width:100%;max-height:min(86dvh,740px);overflow:auto;padding:clamp(24px,4vw,36px);box-shadow:none}
.modal h3{font-size:clamp(1.3rem,3vw,1.75rem);margin:.4em 0 .1em;padding-right:42px}
.modal h4{font-family:var(--font-display);font-size:.92rem;margin:1.2em 0 .35em}
.modal-tag{margin-top:0;font-size:.88rem}
.modal-points{margin:.2em 0;padding-left:20px;color:var(--ink-2);font-size:.94rem}
.modal-points li{margin:.35em 0}
.modal-outcome{margin-top:18px;background:var(--accent-soft);border:1px solid var(--accent-2);border-left:2px solid var(--accent);border-radius:0;padding:12px 16px;font-size:.9rem}
.modal-close{position:absolute;top:12px;right:12px;min-width:44px;min-height:44px;border-radius:0;border:1px solid var(--line-strong);background:var(--bg);color:var(--ink);font-size:1rem;cursor:pointer}
.modal-close:hover{border-color:var(--accent)}
body.modal-open{overflow:hidden}

/* Achievements */
.achievements{grid-template-columns:repeat(2,minmax(0,1fr))}
.ach{display:flex;gap:16px;align-items:center;height:100%}
.ach-icon{flex:none;width:50px;height:50px;display:inline-flex;align-items:center;justify-content:center;font-size:1.3rem;border-radius:2px;background:var(--accent-soft);border:1px solid var(--accent-2);box-shadow:none;filter:grayscale(1)}
.ach h3{margin:.1em 0;font-size:.98rem;line-height:1.45}
.badges-title{display:flex;align-items:center;gap:14px;margin-top:46px;margin-bottom:4px;font-family:var(--font-mono);font-size:.76rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3)}
.badges-title::after{content:"";flex:1;height:1px;background:var(--line)}
.badges-title + .section-sub{margin-top:.2em}

/* Certifications */
.cert{display:flex;flex-direction:column;overflow:hidden;padding:0}
.cert h3,.cert p{padding:0 20px}
.cert h3{margin-top:16px;font-size:.97rem;line-height:1.4}
.cert p{margin-top:.35em;margin-bottom:14px}
.cert-img{overflow:hidden;background:var(--accent-soft);aspect-ratio:16/10;border-bottom:1px solid var(--line)}
.cert-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.cert:hover .cert-img img{transform:scale(1.045)}
.verify{font-weight:700;text-decoration:none;display:inline-flex;min-height:40px;align-items:center;font-size:.88rem}

/* 404 */
.error-page{text-align:center;padding:clamp(60px,10vw,110px) 24px;max-width:640px}
.error-page .section-index{color:var(--accent);font-weight:700;letter-spacing:.14em}
.error-page nav{margin-top:18px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:30px 0;font-style:normal;text-align:left}
.contact-card{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:14px;text-decoration:none;color:var(--ink);padding:22px}
.cc-icon{flex:none;width:46px;height:46px;display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;border-radius:2px;background:transparent;border:1px solid var(--line-strong);color:var(--ink)}
.cc-text{display:flex;flex-direction:column;min-width:0;width:100%}
.cc-text strong{font-family:var(--font-display)}
.cc-text span:last-child{color:var(--ink-2);font-size:.82rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
[data-theme="dark"] .cc-text span:last-child{color:var(--ink-2)}
.cc-arrow{position:absolute;top:18px;right:18px;color:var(--accent-deep);font-size:1.1rem;transition:transform .2s,color .2s}
.contact-card:hover .cc-arrow{transform:translate(2px,-2px);color:var(--ink)}
.contact-alt{margin:24px 0 8px}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:38px 0 calc(38px + env(safe-area-inset-bottom,0px));text-align:center;color:var(--ink-2);font-size:.88rem;background:var(--bg)}
.footer-brand{font-family:var(--font-display);font-weight:700;color:var(--ink);display:flex;align-items:center;justify-content:center;gap:10px}
.footer-inner nav a{color:var(--ink-2);text-decoration:none;min-height:44px;display:inline-flex;align-items:center;padding:6px 4px}
.footer-inner nav a:hover{color:var(--accent)}
.to-top{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));width:48px;height:48px;border-radius:2px;border:1px solid var(--line-strong);background:var(--bg);color:var(--ink);font-size:1.1rem;cursor:pointer;box-shadow:none;opacity:0;translate:0 8px;pointer-events:none;transition:opacity .25s,translate .25s;z-index:90}
.to-top.show{opacity:1;translate:none;pointer-events:auto}
.noscript-note{text-align:center;padding:1rem}

/* Responsive */
@media(max-width:1100px){
  .hero-copy{max-width:860px}
  .hero-index{gap:0 40px}
}
@media(max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cert-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:1000px){
  .nav-toggle{display:block}
  .theme-toggle{margin-left:0}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px clamp(16px,4vw,32px) 20px;gap:2px;box-shadow:none;max-height:calc(100dvh - var(--header-h));overflow:auto}
  .nav-links.open{display:flex}
  .nav-links a{min-height:48px;font-size:.82rem;padding:12px}
  .nav-cta{margin:8px 0 0}
  .nav-cta .btn{justify-content:center;width:100%}
  .grid-2{grid-template-columns:1fr}
  .grid-2 .stack-col{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
  .about-grid{grid-template-columns:1fr}
  .about-primary{border-right:0;border-bottom:1px solid var(--line);padding-right:0;padding-bottom:36px}
  .about-side{padding-left:0;padding-top:36px}
}
@media(max-width:820px){
  .contact-grid{grid-template-columns:1fr}
  .achievements{grid-template-columns:1fr}
  .hero-index{grid-template-columns:1fr;gap:28px}
  .hero-index .stats{grid-column:1;grid-row:auto}
  .hero-focus{grid-column:1;grid-template-columns:1fr;gap:16px;margin-top:0;padding-top:24px}
  .hero-card-note{grid-column:1}
}
@media(max-width:700px){
  body{font-size:15.5px}
  .section{padding:64px 0}
  .sec-head{margin-bottom:32px}
  .pub{grid-template-columns:1fr;gap:6px}
  .pub-side{justify-content:flex-start}
  .pub-num{font-size:1.7rem}
  .modal-backdrop{align-items:flex-end;padding:0}
  .modal{border-radius:0;max-height:92dvh}
  .grid-2 .stack-col{grid-template-columns:1fr}
}
@media(max-width:640px){
  .card-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr}
  .cert{display:grid;grid-template-columns:1fr;grid-template-rows:auto auto;align-items:start}
  .cert-img{display:none}
  .cert h3{grid-column:1;grid-row:1;position:relative;padding:0 14px 0 44px;margin:12px 0 .35em;font-size:.9rem}
  .cert h3::before{content:"✓";position:absolute;left:14px;top:.06em;width:22px;height:22px;display:grid;place-items:center;border-radius:2px;background:var(--accent);color:#172017;font-size:.7rem;font-weight:800;line-height:1}
  .cert p{grid-column:1;grid-row:2;padding:0 14px 0 44px;margin:0 0 12px}
  .cert .verify{min-height:36px;font-size:.8rem}
  .hero{padding-top:56px}
  .ticker ul{gap:20px}
}
@media(max-width:560px){
  .cta-row{flex-direction:column;align-items:stretch}
  .cta-row .btn{width:100%}
  .hero-index{gap:24px}
  .hero-focus{gap:14px}
  .inline-stats li{flex:1 1 100%;padding:12px 0;border-left:0;border-top:1px solid var(--line)}
  .inline-stats li:first-child{border-top:0}
  .inline-stats li+li{padding-left:0}
  .ach{flex-direction:row}
  .contact-card{padding:16px}
  .cc-text span:last-child{white-space:normal;overflow-wrap:anywhere}
}
@media(max-width:380px){
  h1{font-size:2rem}
  .hero-pills li{font-size:.7rem;padding:4px 8px}
  .stat dt{font-size:.55rem;letter-spacing:.06em}
  .social-row a{font-size:.76rem}
  .brand-text{display:none}
}
@media(min-width:1400px){
  :root{--max:1200px}
}
@media(max-height:500px) and (orientation:landscape){
  .hero{padding:40px 0 0}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .ticker-track{animation:none;flex-wrap:wrap;width:auto}
  .pulse{animation:none}
  *{transition:none !important}
}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:0}